Highest Common Factor of 845, 497, 781 using Euclid's algorithm
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 845, 497, 781 i.e. 1 the largest integer that leaves a remainder zero for all numbers.
HCF of 845, 497, 781 is 1 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.
Consider we have numbers 845, 497, 781 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b
Highest common factor (HCF) of 845, 497, 781 is 1.
HCF(845, 497, 781) = 1
HCF of 845, 497, 781 using Euclid's algorithm
Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.
Highest common factor (HCF) of 845, 497, 781 is 1.
Highest Common Factor of 845,497,781 is 1
Step 1: Since 845 > 497, we apply the division lemma to 845 and 497, to get
845 = 497 x 1 + 348
Step 2: Since the reminder 497 ≠ 0, we apply division lemma to 348 and 497, to get
497 = 348 x 1 + 149
Step 3: We consider the new divisor 348 and the new remainder 149, and apply the division lemma to get
348 = 149 x 2 + 50
We consider the new divisor 149 and the new remainder 50,and apply the division lemma to get
149 = 50 x 2 + 49
We consider the new divisor 50 and the new remainder 49,and apply the division lemma to get
50 = 49 x 1 + 1
We consider the new divisor 49 and the new remainder 1,and apply the division lemma to get
49 = 1 x 49 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 845 and 497 is 1
Notice that 1 = HCF(49,1) = HCF(50,49) = HCF(149,50) = HCF(348,149) = HCF(497,348) = HCF(845,497) .
We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma
Step 1: Since 781 > 1, we apply the division lemma to 781 and 1, to get
781 = 1 x 781 + 0
The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 781 is 1
Notice that 1 = HCF(781,1) .
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Frequently Asked Questions on HCF of 845, 497, 781 using Euclid's Algorithm
1. What is the Euclid division algorithm?
Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.
2. what is the HCF of 845, 497, 781?
Answer: HCF of 845, 497, 781 is 1 the largest number that divides all the numbers leaving a remainder zero.
3. How to find HCF of 845, 497, 781 using Euclid's Algorithm?
Answer: For arbitrary numbers 845, 497, 781 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.